
=opacity(!value)
  @if !value > 0.99999
    !value = 1
  @if !value < 0.00001
    !value = 0
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=#{!value * 100})"
  filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=#{!value * 100})
  filter: alpha(opacity=#{!value * 100})
  opacity= !value
    
